http://www.cnr.it/ontology/cnr/individuo/prodotto/ID171757
Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors (Articolo in rivista)
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- Label
- Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.tsf.2006.11.110 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Valletta A; Gaucci P; Mariucci L; Fortunato G; (literal)
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- http://www.sciencedirect.com/science/article/pii/S0040609006014684 (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- IFN-CNR, Via Cineto Romano 42, 00156 Roma, Italy (literal)
- Titolo
- Modelling velocity saturation and kink effects in p-channel polysilicon thin-film transistors (literal)
- Abstract
- Experimental measurements and full-2D numerical simulations show that velocity saturation effects in polysilicon thin-film transistor (TFTs) cannot be neglected in order to obtain a precise modelling of output characteristics. Since full-2D numerical simulations are time consuming and unpractical for circuit simulations, we have developed a new quasi-2D model, that takes into account both velocity saturation effects and the presence of a longitudinal electric field in the Poisson's equation, and includes the effect of parasitic bipolar transistor (PBT) action to reproduce kink effect. The agreement of the quasi-2D model with experimental data from p-channel polysilicon TFTs is very satisfactory even for short channel device, and the presence of a velocity-saturated region with a nearly constant free carrier concentration is reproduced without introducing further assumptions. (literal)
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